Öz
This paper aims to study the contribution of axial loads applied on reinforced concrete (RC walls to enhance contact at the interface between the beam and the wall in order to prevent massive failure in the surrounding frame with low concrete compressive strength. For this reason, the beams are curved upward in the middle at certain levels before the forming the RC walls. After the construction of the walls, the beams are freed so that the beams can exert axial loads on the walls. Four specimens are used in the experimental study. Three of them are bare RC frames retrofitted by using this technique; the fourth one is the one retrofitted with a regular panel and used as a reference specimen. No increase was observed in load carrying capacities of the specimens with axial loaded panels. However, more energy was dissipated by the specimens with axially loaded panels compared to the reference specimen.
Anahtar Kelimeler
reinforced concrete frame axial load experimental Strengthening thin panel
Etik Beyan
No conflict of interest was declared by the author. This study complies with scientific research and publication ethics and principles.
Destekleyen Kurum
Istanbul Technical University
Proje Numarası
34774
Kaynakça
- Teymür, P. and Pala, S. (2018). Seismic strengthening of slightly damaged RC frames using axially loaded shotcreted panels. Karaelmas Fen ve Mühendislik Dergisi, 8(1), 38-47. doi: 10.7212%2Fzkufbd.v8i1.697
- Bastami, M., Salehi, M., Ghorbani, M. and Moghadam, A. S. (2023). Performance of special RC shear walls under lateral cyclic and axial loads. Engineering Structures, 295. https://doi.org/10.1016/j.engstruct.2023.116813
- Khademi, M., Tehranizadeh, M. and Shirkhani, A. (2023). Case studies on the seismic resilience of reinforced concrete shear wall buildings and steel dual concentrically braced buildings. Structures, 58, https://doi.org/10.1016/j.istruc.2023.105596
- Albutainy, M. and Galal, K. (2024). Effect of boundary element detailing on the seismic performance of reinforced concrete masonry shear walls. Engineering Structures, 300. https://doi.org/10.1016/j.engstruct.2023.117164
- El-Azizy, O.A., Ezzeldin, M. and El-Dakhakhni, W. (2023) Comparative analyses of reinforced masonry and reinforced concrete shear walls with different end configurations: Seismic performance and economic assessment. Engineering Structures, 296. https://doi.org/10.1016/j.engstruct.2023.116852
- Du, K., Luo, H. and Sun, J. (2020). Cyclic testing of moment-shear force interaction in reinforced concrete shear wall substructures. Earthquake Engineering and Engineering Vibration, 19, 465-481. https://doi.org/10.1007/s11803-020-0574-x
- Erdem, I., Akyuz, U., Ersoy, U and Ozcebe, G. (2006). An experimental study on two different strengthening techniques for RC frames. Engineering Structures, 28 , 1843–1851. doi:10.1016/j.engstruct.2006.03.010
- Koutas, L., Pitytzogia, A., Triantafillou, T.C. and Bousias, S.N. (2014). Strengthening of infilled reinforced concrete frames with TRM: study on the development and testing of textile-based anchors. Journal of Composites for Construction, 18(3). https://doi.org/10.1061/(ASCE)CC.1943-5614.0000390
- Vetr, M. G., Yarmohamadi, A. and Mohammadikish, S. (2022). Experimental and numerical study on seismic response of RC frames strengthened by shotcrete sandwich panel infills and CFRP strips. Structures, 38, 1244–1256. https://doi.org/10.1016/j.istruc.2021.11.052
- Liang, L., Bai, G., Ma, J. and Jiang, Q. (2023). Seismic behavior of irregular shaped beam-column connections. Engineering Structures, 297. https://doi.org/10.1016/j.engstruct.2023.116942
Öz
Bu çalışma, betonarme duvarlara uygulanan eksenel yüklerin, düşük beton basınç dayanımına sahip çerçevenin ağır hasar görmesini önlemek için kiriş ile duvar arasındaki arayüzdeki teması arttırmaya katkısını araştırmayı amaçlamaktadır. Bu nedenle kirişler, betonarme duvarların yapımından önce belirli seviyelerde ters sehim verilir. Duvarların yapımından sonra kirişler serbest bırakılır, böylece kirişler duvarlara eksenel yükler uygulayabilirler. Deneysel çalışmada dört adet numune kullanılmıştır. Bunlardan üçü, ter sehim işlemi kullanılarak güçlendirilmiş yalın BA çerçevelerdir; Dördüncüsü ise, üzerinde eksenel yükü olmayan ve referans numune olarak kullanılan bir panel ile güçlendirilmiş çerçevedir. Eksenel yüklü panellere sahip numunelerin yük taşıma kapasitelerinde artış gözlenmedi. Bununla birlikte, eksenel yüklü panellere sahip numuneler tarafından referans numuneye kıyasla daha fazla enerji soğrulmuştur.
Anahtar Kelimeler
betonarme çerçeve normal yük deneysel güçlendirme ince panel
Etik Beyan
Yazar tarafından herhangi bir çıkar çatışması ilan edilmedi. Bu çalışma bilimsel araştırma ve yayın etiği ve ilkelerine uygundur.
Destekleyen Kurum
İstanbul Teknik Üniversitesi
Proje Numarası
34774
Kaynakça
- Teymür, P. and Pala, S. (2018). Seismic strengthening of slightly damaged RC frames using axially loaded shotcreted panels. Karaelmas Fen ve Mühendislik Dergisi, 8(1), 38-47. doi: 10.7212%2Fzkufbd.v8i1.697
- Bastami, M., Salehi, M., Ghorbani, M. and Moghadam, A. S. (2023). Performance of special RC shear walls under lateral cyclic and axial loads. Engineering Structures, 295. https://doi.org/10.1016/j.engstruct.2023.116813
- Khademi, M., Tehranizadeh, M. and Shirkhani, A. (2023). Case studies on the seismic resilience of reinforced concrete shear wall buildings and steel dual concentrically braced buildings. Structures, 58, https://doi.org/10.1016/j.istruc.2023.105596
- Albutainy, M. and Galal, K. (2024). Effect of boundary element detailing on the seismic performance of reinforced concrete masonry shear walls. Engineering Structures, 300. https://doi.org/10.1016/j.engstruct.2023.117164
- El-Azizy, O.A., Ezzeldin, M. and El-Dakhakhni, W. (2023) Comparative analyses of reinforced masonry and reinforced concrete shear walls with different end configurations: Seismic performance and economic assessment. Engineering Structures, 296. https://doi.org/10.1016/j.engstruct.2023.116852
- Du, K., Luo, H. and Sun, J. (2020). Cyclic testing of moment-shear force interaction in reinforced concrete shear wall substructures. Earthquake Engineering and Engineering Vibration, 19, 465-481. https://doi.org/10.1007/s11803-020-0574-x
- Erdem, I., Akyuz, U., Ersoy, U and Ozcebe, G. (2006). An experimental study on two different strengthening techniques for RC frames. Engineering Structures, 28 , 1843–1851. doi:10.1016/j.engstruct.2006.03.010
- Koutas, L., Pitytzogia, A., Triantafillou, T.C. and Bousias, S.N. (2014). Strengthening of infilled reinforced concrete frames with TRM: study on the development and testing of textile-based anchors. Journal of Composites for Construction, 18(3). https://doi.org/10.1061/(ASCE)CC.1943-5614.0000390
- Vetr, M. G., Yarmohamadi, A. and Mohammadikish, S. (2022). Experimental and numerical study on seismic response of RC frames strengthened by shotcrete sandwich panel infills and CFRP strips. Structures, 38, 1244–1256. https://doi.org/10.1016/j.istruc.2021.11.052
- Liang, L., Bai, G., Ma, J. and Jiang, Q. (2023). Seismic behavior of irregular shaped beam-column connections. Engineering Structures, 297. https://doi.org/10.1016/j.engstruct.2023.116942
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Betonarme Yapılar |
| Bölüm | Araştırma Makaleleri |
| Yazarlar | |
| Proje Numarası | 34774 |
| Erken Görünüm Tarihi | 6 Ağustos 2024 |
| Yayımlanma Tarihi | 12 Ağustos 2024 |
| Gönderilme Tarihi | 15 Ocak 2024 |
| Kabul Tarihi | 24 Haziran 2024 |
| Yayımlandığı Sayı | Yıl 2024 |